save 2.3K flash-memory by avoiding a single floating point operation (#630)

[proxmark3-svn] / armsrc / iso14443b.c

diff --git a/armsrc/iso14443b.c b/armsrc/iso14443b.c
index 22227e74bec96651d5c2620dd37f4bea210f27d2..75769859392c725453b4ede60ae9a5b3a60a3797 100644 (file)
--- a/armsrc/iso14443b.c
+++ b/armsrc/iso14443b.c
@@ -243,7 +243,7 @@ static RAMFUNC int Handle14443bUartBit(uint8_t bit)
                                        LED_A_OFF(); // Finished receiving
                                        Uart.state = STATE_UNSYNCD;
                                        if (Uart.byteCnt != 0) {
                                        LED_A_OFF(); // Finished receiving
                                        Uart.state = STATE_UNSYNCD;
                                        if (Uart.byteCnt != 0) {

-                                               return TRUE;
+                                               return true;

                                        }
                                } else {
                                        // this is an error
                                        }
                                } else {
                                        // this is an error


@@ -259,7 +259,7 @@ static RAMFUNC int Handle14443bUartBit(uint8_t bit)
                        break;
        }
 
                        break;
        }
 

-       return FALSE;
+       return false;

 }
 
 
 }
 
 


@@ -283,7 +283,7 @@ static void UartInit(uint8_t *data)
 // Receive a command (from the reader to us, where we are the simulated tag),
 // and store it in the given buffer, up to the given maximum length. Keeps
 // spinning, waiting for a well-framed command, until either we get one
 // Receive a command (from the reader to us, where we are the simulated tag),
 // and store it in the given buffer, up to the given maximum length. Keeps
 // spinning, waiting for a well-framed command, until either we get one

-// (returns TRUE) or someone presses the pushbutton on the board (FALSE).
+// (returns true) or someone presses the pushbutton on the board (false).

 //
 // Assume that we're called with the SSC (to the FPGA) and ADC path set
 // correctly.
 //
 // Assume that we're called with the SSC (to the FPGA) and ADC path set
 // correctly.


@@ -302,20 +302,20 @@ static int GetIso14443bCommandFromReader(uint8_t *received, uint16_t *len)
        for(;;) {
                WDT_HIT();
 
        for(;;) {
                WDT_HIT();
 

-               if(BUTTON_PRESS()) return FALSE;
+               if(BUTTON_PRESS()) return false;

 
                if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) {
                        uint8_t b = (uint8_t)AT91C_BASE_SSC->SSC_RHR;
                        for(uint8_t mask = 0x80; mask != 0x00; mask >>= 1) {
                                if(Handle14443bUartBit(b & mask)) {
                                        *len = Uart.byteCnt;
 
                if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) {
                        uint8_t b = (uint8_t)AT91C_BASE_SSC->SSC_RHR;
                        for(uint8_t mask = 0x80; mask != 0x00; mask >>= 1) {
                                if(Handle14443bUartBit(b & mask)) {
                                        *len = Uart.byteCnt;

-                                       return TRUE;
+                                       return true;

                                }
                        }
                }
        }
 
                                }
                        }
                }
        }
 

-       return FALSE;
+       return false;

 }
 
 //-----------------------------------------------------------------------------
 }
 
 //-----------------------------------------------------------------------------


@@ -347,7 +347,7 @@ void SimulateIso14443bTag(void)
        FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
 
        clear_trace();
        FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
 
        clear_trace();

-       set_tracing(TRUE);
+       set_tracing(true);

 
        const uint8_t *resp;
        uint8_t *respCode;
 
        const uint8_t *resp;
        uint8_t *respCode;


@@ -387,7 +387,7 @@ void SimulateIso14443bTag(void)
 
                if (tracing) {
                        uint8_t parity[MAX_PARITY_SIZE];
 
                if (tracing) {
                        uint8_t parity[MAX_PARITY_SIZE];

-                       LogTrace(receivedCmd, len, 0, 0, parity, TRUE);
+                       LogTrace(receivedCmd, len, 0, 0, parity, true);

                }
 
                // Good, look at the command now.
                }
 
                // Good, look at the command now.


@@ -464,7 +464,7 @@ void SimulateIso14443bTag(void)
                // trace the response:
                if (tracing) {
                        uint8_t parity[MAX_PARITY_SIZE];
                // trace the response:
                if (tracing) {
                        uint8_t parity[MAX_PARITY_SIZE];

-                       LogTrace(resp, respLen, 0, 0, parity, FALSE);
+                       LogTrace(resp, respLen, 0, 0, parity, false);

                }
 
        }
                }
 
        }


@@ -702,7 +702,7 @@ static RAMFUNC int Handle14443bSamplesDemod(int ci, int cq)
                                                LED_C_OFF();
                                                if(s == 0x000) {
                                                        // This is EOF (start, stop and all data bits == '0'
                                                LED_C_OFF();
                                                if(s == 0x000) {
                                                        // This is EOF (start, stop and all data bits == '0'

-                                                       return TRUE;
+                                                       return true;

                                                }
                                        }
                                }
                                                }
                                        }
                                }


@@ -716,7 +716,7 @@ static RAMFUNC int Handle14443bSamplesDemod(int ci, int cq)
                        break;
        }
 
                        break;
        }
 

-       return FALSE;
+       return false;

 }
 
 
 }
 
 


@@ -739,12 +739,12 @@ static void DemodInit(uint8_t *data)
 
 /*
  *  Demodulate the samples we received from the tag, also log to tracebuffer
 
 /*
  *  Demodulate the samples we received from the tag, also log to tracebuffer

- *  quiet: set to 'TRUE' to disable debug output
+ *  quiet: set to 'true' to disable debug output

  */
 static void GetSamplesFor14443bDemod(int n, bool quiet)
 {
        int max = 0;
  */
 static void GetSamplesFor14443bDemod(int n, bool quiet)
 {
        int max = 0;

-       bool gotFrame = FALSE;
+       bool gotFrame = false;

        int lastRxCounter, ci, cq, samples = 0;
 
        // Allocate memory from BigBuf for some buffers
        int lastRxCounter, ci, cq, samples = 0;
 
        // Allocate memory from BigBuf for some buffers


@@ -792,7 +792,7 @@ static void GetSamplesFor14443bDemod(int n, bool quiet)
                        samples += 2;
 
                        if(Handle14443bSamplesDemod(ci, cq)) {
                        samples += 2;
 
                        if(Handle14443bSamplesDemod(ci, cq)) {

-                               gotFrame = TRUE;
+                               gotFrame = true;

                                break;
                        }
                }
                                break;
                        }
                }


@@ -808,7 +808,7 @@ static void GetSamplesFor14443bDemod(int n, bool quiet)
        //Tracing
        if (tracing && Demod.len > 0) {
                uint8_t parity[MAX_PARITY_SIZE];
        //Tracing
        if (tracing && Demod.len > 0) {
                uint8_t parity[MAX_PARITY_SIZE];

-               LogTrace(Demod.output, Demod.len, 0, 0, parity, FALSE);
+               LogTrace(Demod.output, Demod.len, 0, 0, parity, false);

        }
 }
 
        }
 }
 


@@ -929,7 +929,7 @@ static void CodeAndTransmit14443bAsReader(const uint8_t *cmd, int len)
        TransmitFor14443b();
        if (tracing) {
                uint8_t parity[MAX_PARITY_SIZE];
        TransmitFor14443b();
        if (tracing) {
                uint8_t parity[MAX_PARITY_SIZE];

-               LogTrace(cmd,len, 0, 0, parity, TRUE);
+               LogTrace(cmd,len, 0, 0, parity, true);

        }
 }
 
        }
 }
 


@@ -951,7 +951,7 @@ int iso14443b_apdu(uint8_t const *message, size_t message_length, uint8_t *respo
        // send
        CodeAndTransmit14443bAsReader(message_frame, message_length + 4);
        // get response
        // send
        CodeAndTransmit14443bAsReader(message_frame, message_length + 4);
        // get response

-       GetSamplesFor14443bDemod(RECEIVE_SAMPLES_TIMEOUT*100, TRUE);
+       GetSamplesFor14443bDemod(RECEIVE_SAMPLES_TIMEOUT*100, true);

        if(Demod.len < 3)
        {
                return 0;
        if(Demod.len < 3)
        {
                return 0;


@@ -981,7 +981,7 @@ int iso14443b_select_card()
 
        // first, wake up the tag
        CodeAndTransmit14443bAsReader(wupb, sizeof(wupb));
 
        // first, wake up the tag
        CodeAndTransmit14443bAsReader(wupb, sizeof(wupb));

-       GetSamplesFor14443bDemod(RECEIVE_SAMPLES_TIMEOUT, TRUE);
+       GetSamplesFor14443bDemod(RECEIVE_SAMPLES_TIMEOUT, true);

        // ATQB too short?
        if (Demod.len < 14)
        {
        // ATQB too short?
        if (Demod.len < 14)
        {


@@ -996,7 +996,7 @@ int iso14443b_select_card()
     attrib[7] = Demod.output[10] & 0x0F;
     ComputeCrc14443(CRC_14443_B, attrib, 9, attrib + 9, attrib + 10);
     CodeAndTransmit14443bAsReader(attrib, sizeof(attrib));
     attrib[7] = Demod.output[10] & 0x0F;
     ComputeCrc14443(CRC_14443_B, attrib, 9, attrib + 9, attrib + 10);
     CodeAndTransmit14443bAsReader(attrib, sizeof(attrib));

-    GetSamplesFor14443bDemod(RECEIVE_SAMPLES_TIMEOUT, TRUE);
+    GetSamplesFor14443bDemod(RECEIVE_SAMPLES_TIMEOUT, true);

     // Answer to ATTRIB too short?
     if(Demod.len < 3)
        {
     // Answer to ATTRIB too short?
     if(Demod.len < 3)
        {


@@ -1056,12 +1056,12 @@ void ReadSTMemoryIso14443b(uint32_t dwLast)
        SpinDelay(200);
 
        clear_trace();
        SpinDelay(200);
 
        clear_trace();

-       set_tracing(TRUE);
+       set_tracing(true);

 
        // First command: wake up the tag using the INITIATE command
        uint8_t cmd1[] = {0x06, 0x00, 0x97, 0x5b};
        CodeAndTransmit14443bAsReader(cmd1, sizeof(cmd1));
 
        // First command: wake up the tag using the INITIATE command
        uint8_t cmd1[] = {0x06, 0x00, 0x97, 0x5b};
        CodeAndTransmit14443bAsReader(cmd1, sizeof(cmd1));

-       GetSamplesFor14443bDemod(RECEIVE_SAMPLES_TIMEOUT, TRUE);
+       GetSamplesFor14443bDemod(RECEIVE_SAMPLES_TIMEOUT, true);

 
        if (Demod.len == 0) {
                DbpString("No response from tag");
 
        if (Demod.len == 0) {
                DbpString("No response from tag");


@@ -1077,7 +1077,7 @@ void ReadSTMemoryIso14443b(uint32_t dwLast)
        cmd1[1] = Demod.output[0];
        ComputeCrc14443(CRC_14443_B, cmd1, 2, &cmd1[2], &cmd1[3]);
        CodeAndTransmit14443bAsReader(cmd1, sizeof(cmd1));
        cmd1[1] = Demod.output[0];
        ComputeCrc14443(CRC_14443_B, cmd1, 2, &cmd1[2], &cmd1[3]);
        CodeAndTransmit14443bAsReader(cmd1, sizeof(cmd1));

-       GetSamplesFor14443bDemod(RECEIVE_SAMPLES_TIMEOUT, TRUE);
+       GetSamplesFor14443bDemod(RECEIVE_SAMPLES_TIMEOUT, true);

        if (Demod.len != 3) {
                Dbprintf("Expected 3 bytes from tag, got %d", Demod.len);
                return;
        if (Demod.len != 3) {
                Dbprintf("Expected 3 bytes from tag, got %d", Demod.len);
                return;


@@ -1099,7 +1099,7 @@ void ReadSTMemoryIso14443b(uint32_t dwLast)
        cmd1[0] = 0x0B;
        ComputeCrc14443(CRC_14443_B, cmd1, 1 , &cmd1[1], &cmd1[2]);
        CodeAndTransmit14443bAsReader(cmd1, 3); // Only first three bytes for this one
        cmd1[0] = 0x0B;
        ComputeCrc14443(CRC_14443_B, cmd1, 1 , &cmd1[1], &cmd1[2]);
        CodeAndTransmit14443bAsReader(cmd1, 3); // Only first three bytes for this one

-       GetSamplesFor14443bDemod(RECEIVE_SAMPLES_TIMEOUT, TRUE);
+       GetSamplesFor14443bDemod(RECEIVE_SAMPLES_TIMEOUT, true);

        if (Demod.len != 10) {
                Dbprintf("Expected 10 bytes from tag, got %d", Demod.len);
                return;
        if (Demod.len != 10) {
                Dbprintf("Expected 10 bytes from tag, got %d", Demod.len);
                return;


@@ -1128,7 +1128,7 @@ void ReadSTMemoryIso14443b(uint32_t dwLast)
                cmd1[1] = i;
                ComputeCrc14443(CRC_14443_B, cmd1, 2, &cmd1[2], &cmd1[3]);
                CodeAndTransmit14443bAsReader(cmd1, sizeof(cmd1));
                cmd1[1] = i;
                ComputeCrc14443(CRC_14443_B, cmd1, 2, &cmd1[2], &cmd1[3]);
                CodeAndTransmit14443bAsReader(cmd1, sizeof(cmd1));

-               GetSamplesFor14443bDemod(RECEIVE_SAMPLES_TIMEOUT, TRUE);
+               GetSamplesFor14443bDemod(RECEIVE_SAMPLES_TIMEOUT, true);

                if (Demod.len != 6) { // Check if we got an answer from the tag
                        DbpString("Expected 6 bytes from tag, got less...");
                        return;
                if (Demod.len != 6) { // Check if we got an answer from the tag
                        DbpString("Expected 6 bytes from tag, got less...");
                        return;


@@ -1174,13 +1174,13 @@ void RAMFUNC SnoopIso14443b(void)
        // We won't start recording the frames that we acquire until we trigger;
        // a good trigger condition to get started is probably when we see a
        // response from the tag.
        // We won't start recording the frames that we acquire until we trigger;
        // a good trigger condition to get started is probably when we see a
        // response from the tag.

-       int triggered = TRUE;                   // TODO: set and evaluate trigger condition
+       int triggered = true;                   // TODO: set and evaluate trigger condition

 
        FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
        BigBuf_free();
 
        clear_trace();
 
        FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
        BigBuf_free();
 
        clear_trace();

-       set_tracing(TRUE);
+       set_tracing(true);

 
        // The DMA buffer, used to stream samples from the FPGA
        int8_t *dmaBuf = (int8_t*) BigBuf_malloc(ISO14443B_DMA_BUFFER_SIZE);
 
        // The DMA buffer, used to stream samples from the FPGA
        int8_t *dmaBuf = (int8_t*) BigBuf_malloc(ISO14443B_DMA_BUFFER_SIZE);


@@ -1217,8 +1217,8 @@ void RAMFUNC SnoopIso14443b(void)
        FpgaSetupSscDma((uint8_t*) dmaBuf, ISO14443B_DMA_BUFFER_SIZE);
        uint8_t parity[MAX_PARITY_SIZE];
 
        FpgaSetupSscDma((uint8_t*) dmaBuf, ISO14443B_DMA_BUFFER_SIZE);
        uint8_t parity[MAX_PARITY_SIZE];
 

-       bool TagIsActive = FALSE;
-       bool ReaderIsActive = FALSE;
+       bool TagIsActive = false;
+       bool ReaderIsActive = false;

 
        // And now we loop, receiving samples.
        for(;;) {
 
        // And now we loop, receiving samples.
        for(;;) {


@@ -1259,7 +1259,7 @@ void RAMFUNC SnoopIso14443b(void)
                if (!TagIsActive) {                                                     // no need to try decoding reader data if the tag is sending
                        if(Handle14443bUartBit(ci & 0x01)) {
                                if(triggered && tracing) {
                if (!TagIsActive) {                                                     // no need to try decoding reader data if the tag is sending
                        if(Handle14443bUartBit(ci & 0x01)) {
                                if(triggered && tracing) {

-                                       LogTrace(Uart.output, Uart.byteCnt, samples, samples, parity, TRUE);
+                                       LogTrace(Uart.output, Uart.byteCnt, samples, samples, parity, true);

                                }
                                /* And ready to receive another command. */
                                UartReset();
                                }
                                /* And ready to receive another command. */
                                UartReset();


@@ -1269,7 +1269,7 @@ void RAMFUNC SnoopIso14443b(void)
                        }
                        if(Handle14443bUartBit(cq & 0x01)) {
                                if(triggered && tracing) {
                        }
                        if(Handle14443bUartBit(cq & 0x01)) {
                                if(triggered && tracing) {

-                                       LogTrace(Uart.output, Uart.byteCnt, samples, samples, parity, TRUE);
+                                       LogTrace(Uart.output, Uart.byteCnt, samples, samples, parity, true);

                                }
                                /* And ready to receive another command. */
                                UartReset();
                                }
                                /* And ready to receive another command. */
                                UartReset();


@@ -1287,9 +1287,9 @@ void RAMFUNC SnoopIso14443b(void)
                                if(tracing)
                                {
                                        uint8_t parity[MAX_PARITY_SIZE];
                                if(tracing)
                                {
                                        uint8_t parity[MAX_PARITY_SIZE];

-                                       LogTrace(Demod.output, Demod.len, samples, samples, parity, FALSE);
+                                       LogTrace(Demod.output, Demod.len, samples, samples, parity, false);

                                }
                                }

-                               triggered = TRUE;
+                               triggered = true;

 
                                // And ready to receive another response.
                                DemodReset();
 
                                // And ready to receive another response.
                                DemodReset();


@@ -1330,12 +1330,12 @@ void SendRawCommand14443B(uint32_t datalen, uint32_t recv, uint8_t powerfield, u
        FpgaSetupSsc();
 
        if (datalen){
        FpgaSetupSsc();
 
        if (datalen){

-               set_tracing(TRUE);
+               set_tracing(true);

                
                CodeAndTransmit14443bAsReader(data, datalen);
 
                if(recv) {
                
                CodeAndTransmit14443bAsReader(data, datalen);
 
                if(recv) {

-                       GetSamplesFor14443bDemod(RECEIVE_SAMPLES_TIMEOUT, TRUE);
+                       GetSamplesFor14443bDemod(RECEIVE_SAMPLES_TIMEOUT, true);

                        uint16_t iLen = MIN(Demod.len, USB_CMD_DATA_SIZE);
                        cmd_send(CMD_ACK, iLen, 0, 0, Demod.output, iLen);
                }
                        uint16_t iLen = MIN(Demod.len, USB_CMD_DATA_SIZE);
                        cmd_send(CMD_ACK, iLen, 0, 0, Demod.output, iLen);
                }